<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
		body{
			margin:0;
			padding: 0;
		}
			.box{
				width:100%;
				height:500px;
				background-color: #DDDDDD;
			}
			.width1200{
				width:1200px;
				height:300px;
				background-color: #8CBB30;
				margin:0 auto;
			}
		</style>
	</head>
	<body>
		<div class="box">
			<div class="width1200">
				
			</div>
		</div>
	</body>
</html>
